[参考译文] J722SXH01EVM：更改了 j721e-csi2rx 的帧格式

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https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1440668/j722sxh01evm-changing-frame-format-for-j721e-csi2rx

器件型号：J722SXH01EVM

工具与软件：

您好！

我正在尝试使用以下 v4l2-ctl 命令从传感器捕获 CSI-2数据：

root@j722s-evm:/# v4l2-ctl --set-fmt-video=width=4096,height=32,pixelformat=UYVY -d /dev/video2 --stream-mmap --stream-count=300 --stream-to=radar.raw                                                             
[  133.333717] j721e-csi2rx 30102000.ticsi2rx: Width does not match (source 640, sink 4096)
                VIDIOC_STREAMON returned -1 (Broken pipe)
root@j722s-evm:/# media-ctl -p
Media controller API version 6.6.32

Media device information
------------------------
driver          j721e-csi2rx
model           TI-CSI2RX
serial          
bus info        platform:30102000.ticsi2rx
hw revision     0x1
driver version  6.6.32

Device topology
- entity 1: 30102000.ticsi2rx (7 pads, 7 links, 1 route)
            type V4L2 subdev subtype Unknown flags 0
            device node name /dev/v4l-subdev0
        routes:
                0/0 -> 1/0 [ACTIVE]
        pad0: Sink
                [stream:0 fmt:UYVY8_1X16/640x480 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "cdns_csi2rx.30101000.csi-bridge":1 [ENABLED,IMMUTABLE]
        pad1: Source
                [stream:0 fmt:UYVY8_1X16/640x480 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "30102000.ticsi2rx context 0":0 [ENABLED,IMMUTABLE]
        pad2: Source
                -> "30102000.ticsi2rx context 1":0 [ENABLED,IMMUTABLE]
        pad3: Source
                -> "30102000.ticsi2rx context 2":0 [ENABLED,IMMUTABLE]
        pad4: Source
                -> "30102000.ticsi2rx context 3":0 [ENABLED,IMMUTABLE]
        pad5: Source
                -> "30102000.ticsi2rx context 4":0 [ENABLED,IMMUTABLE]
        pad6: Source
                -> "30102000.ticsi2rx context 5":0 [ENABLED,IMMUTABLE]

- entity 9: cdns_csi2rx.30101000.csi-bridge (5 pads, 2 links, 1 route)
            type V4L2 subdev subtype Unknown flags 0
            device node name /dev/v4l-subdev1
        routes:
                0/0 -> 1/0 [ACTIVE]
        pad0: Sink
                [stream:0 fmt:UYVY8_1X16/4096x32 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                <- "dummy_csi2_sensor":0 [ENABLED,IMMUTABLE]
        pad1: Source
                [stream:0 fmt:UYVY8_1X16/4096x32 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:lim-range]
                -> "30102000.ticsi2rx":0 [ENABLED,IMMUTABLE]
        pad2: Source
        pad3: Source
        pad4: Source

- entity 15: dummy_csi2_sensor (1 pad, 1 link, 0 routes)
             type V4L2 subdev subtype Sensor flags 0
             device node name /dev/v4l-subdev2
        pad0: Source
                [stream:0 fmt:UYVY8_1X16/4096x32 field:none colorspace:srgb xfer:srgb ycbcr:601 quantization:full-range
                 crop:(0,0)/4096x32]
                -> "cdns_csi2rx.30101000.csi-bridge":0 [ENABLED,IMMUTABLE]

- entity 21: 30102000.ticsi2rx context 0 (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video2
        pad0: Sink
                <- "30102000.ticsi2rx":1 [ENABLED,IMMUTABLE]

- entity 27: 30102000.ticsi2rx context 1 (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video3
        pad0: Sink
                <- "30102000.ticsi2rx":2 [ENABLED,IMMUTABLE]

- entity 33: 30102000.ticsi2rx context 2 (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video4
        pad0: Sink
                <- "30102000.ticsi2rx":3 [ENABLED,IMMUTABLE]

- entity 39: 30102000.ticsi2rx context 3 (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video5
        pad0: Sink
                <- "30102000.ticsi2rx":4 [ENABLED,IMMUTABLE]

- entity 45: 30102000.ticsi2rx context 4 (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video6
        pad0: Sink
                <- "30102000.ticsi2rx":5 [ENABLED,IMMUTABLE]

- entity 51: 30102000.ticsi2rx context 5 (1 pad, 1 link)
             type Node subtype V4L flags 0
             device node name /dev/video7
        pad0: Sink
                <- "30102000.ticsi2rx":6 [ENABLED,IMMUTABLE]

我尝试在 j721e-csi2rx.c 中修改了帧尺寸、如下所示：

...
	mutex_init(&ctx->mutex);

	fmt = find_format_by_fourcc(V4L2_PIX_FMT_UYVY);
	if (!fmt)
		return -EINVAL;

	pix_fmt->width = 4096;
	pix_fmt->height = 32;
	pix_fmt->field = V4L2_FIELD_NONE;
	pix_fmt->colorspace = V4L2_COLORSPACE_SRGB;
	pix_fmt->ycbcr_enc = V4L2_YCBCR_ENC_601,
	pix_fmt->quantization = V4L2_QUANTIZATION_LIM_RANGE,
	pix_fmt->xfer_func = V4L2_XFER_FUNC_SRGB,

	ti_csi2rx_fill_fmt(fmt, &ctx->v_fmt);

	ctx->pad.flags = MEDI
...

但错误仍然存在。您能提供建议吗？

谢谢！

Jin

1 年多前

0 admin 1 年多前

TI__Guru**** 2487425 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

您好！

要更新的正确值位于_ti_csi2rx_sd_set_routing ()中：

static int _ti_csi2rx_sd_set_routing(struct v4l2_subdev *sd,
				     struct v4l2_subdev_state *state,
				     struct v4l2_subdev_krouting *routing)
{
	int ret;

	const struct v4l2_mbus_framefmt format = {
		.width = 4096,
		.height = 32,
		.code = MEDIA_BUS_FMT_UYVY8_1X16,
...

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[参考译文] J722SXH01EVM：更改了 j721e-csi2rx 的帧格式